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. 2020 Jul 9;10(19):8513–8527. doi: 10.7150/thno.47243

Figure 3.

Figure 3

The colloidal peptide-auric SNH is stable and proteolytically resistant. (A) The physicochemical properties of the three peptide and the schematic diagram of three peptide-Auric SNH. (B-D) The dimensional change of Pep-AuNPs and Pep-Au SNH with time in PBS (pH7.4) or PBS including 20% FBS and 50 µM GSH to simulate extracellular physiological environment. (E-G) Proteolysis resistance of Pep-SH, Pep-AuNPs and Pep-Au SNH under PBS containing 10 mM oxidized glutathione, 10% serum, and 0.5 mg/ml chymotrypsin.